What is Panasonic NCR18650B
amp limit, and where I can see original manufacturer datasheet to confirm exact
maximum current draw?
Many people from vape, and flashlight community ask this
very same question, searching for one simple (and correct) answer.
Continue reading, and you will finally see 100% correct data for NCR18650B 3400mAh Panasonic 18650 Li-ion battery:
Maximum amp limit current draw is 2 C. It is called 18650 battery
C rating. I will explain C ratings in
details later.
Right now in plain English, all you need to know when you
see "C", and number before "C" :
Multiply the number printed just before letter C by battery capacity.
Where can I find typical rated capacity for NCR18650B?
Right here: manufacturer specifications | datasheet
If you read carefully this PDF document from Panasonic, you
will see that typical capacity is 3350mAh, and 2 C (bottom right - battery discharge
characteristics graph).
2 x 3350 = 6700mA
In Amps (Ampere) : 6.7 Amp - much easier number to read.
Maximum NCR18650B discharge amp limit is 6.7 Amps under continuous current load.
There are many high quality 18650 batteries on the market right now.
Panasonic is leader in manufacturing lithium-ion rechargeable cells with unbelievably good quality control.
There are many high quality 18650 batteries on the market right now.
Panasonic is leader in manufacturing lithium-ion rechargeable cells with unbelievably good quality control.
I agree with you, Panasonic NCR18650B is awesome!
ReplyDeleteFor vaping, unprotected batteries are the way to go. These batts recharge well, hold a charge for quite some time, and last for a few days of fairly constant vaping. I use these in an iTaste SVD with great results.
You can see full details about 18650 batteries at: http://www.kategodkin.com/understanding-about-18650-battery-for-led-flashlights/
When I connect 10 of these in parallel and get 34 Amps do I then get 20C?
ReplyDeleteBasically in parallel set up the batteries share the load it's still at 4.2 volts but each battery would carry 3.4 amps of the load. You could in theory run it up to 68 amps. That would be the max 10 of these batteries could handle which would be 20c but the batteries won't hold that load more then a few minutes before there done and need a recharge. And constant charge and discharge cycles at a cells max constant discharge severely shortens the life of the cell. If one cell failed early and your drawing max amps it could make another cell fail and vent from excessive heat. Since the other 9 batteries are being drained at past their max loads. I've seen these batteries discharged at 10 amps. And they don't do well at all. 7 amps is the max these cells can take and there are much better like the ncr18650ga or the lg mj1. But these batteries are cheap to abuse. On gb 32 batteries can be had for $100 shipped. Sometimes it's cheaper to abuse these cells for a year and toss them and get more. They can't take much more then 100 cycles of actual true abuse anyways. The more they are abused the lower amps they can supply as they age
DeleteBasically in parallel set up the batteries share the load it's still at 4.2 volts but each battery would carry 3.4 amps of the load. You could in theory run it up to 68 amps. That would be the max 10 of these batteries could handle which would be 20c but the batteries won't hold that load more then a few minutes before there done and need a recharge. And constant charge and discharge cycles at a cells max constant discharge severely shortens the life of the cell. If one cell failed early and your drawing max amps it could make another cell fail and vent from excessive heat. Since the other 9 batteries are being drained at past their max loads. I've seen these batteries discharged at 10 amps. And they don't do well at all. 7 amps is the max these cells can take and there are much better like the ncr18650ga or the lg mj1. But these batteries are cheap to abuse. On gb 32 batteries can be had for $100 shipped. Sometimes it's cheaper to abuse these cells for a year and toss them and get more. They can't take much more then 100 cycles of actual true abuse anyways. The more they are abused the lower amps they can supply as they age
DeleteDH seems that you don't know anything about cells & you are trying to show the best part of what you know by teaching English here... "Then" I must tell you to go work for "Google Translate" or something lol
DeleteDK - The word "then" is, for once, being used quite correctly in this question. If you are referring to the answer, you should say so, otherwise you are chastising Myron DesJarlait for something he gas not done, instead of the unknown responder.
Delete("...batteries won't hold that load for more THAN a few minutes...", "They can't take much more THAN 100 cycles ...")
When I connect 10 of these in parallel will I then have 20C?
ReplyDeleteYes. But note that at high discharge rates, that are above 0.5C, you do not get the full capacity of 3.4 Ah. At 0.5C rate, you will probably get only 65% of the capacity. If you let the cell relax, you will get some more back. But not 100%. If you discharge at 0.01C, you will get 100% of the rated capacity.
Deleteno they are still 2c always were always will be, i know what you are asking but 2= 2x c=capacity 10p you have increased capacity 10 fold so it is this c number that increases not the denominator 2x, it equates to the same 68amps but its the wrong way to work it out
Deleteno cells are 2c always were always will be the number c will increase the 2x will always stay the same, it still equates the same 68amps but that is the correct way to work it out c= capacity 10parallels=34ah capacity so c=34ah 2x34=68a
DeleteThis comment has been removed by the author.
ReplyDeleteThese were a great choice for my electric bicycle, 103.6v 60ah = 296+ safe battery use miles. They are awesome. Stay under 20mph :-). They are so lightweight when building a battery pack.
ReplyDeleteCheese and rice man, 106b volts!!!!???
DeletePLEASEPLEASEPLEASE PURDY please send my an electrical diagram and pictures, etc. This sounds like the great superbike of MadMax era WINNER FAME. I wanna study it so I can do something similar. Many tank yous for having dared to venture, and many more in advance for your help.
RSVP ks6n30@gmail.com
Building a 60v. 34a battery for my trike.
ReplyDeleteUsing test tube racks to hold the cells.
.75" holes .72" cells. Almost perfect.
Since the battery will be in a 24" metal cube
on the back I don't have to worry about size.
Sure diy, or go with battery blocks from Shawn McCarthy website green axle.
DeleteThat is about 160 cells in a 16S10P configutation. Don't bother with racks. Just glue and tape them together in a rectangular bundle of 16 x 10 cells. Put a thin insulation (vinyl tape) between each rows of 10.
DeleteThe NCR 18650B seems to offer me excellent energy density that I require. I wonder is it suitable for offering power in all-electric aircraft? How about its safety?
ReplyDeleteSafety is most important part when working with 18650 (all li-ion) batteries. Here you can see very good battery safety guide http://www.orbtronic.com/rechargeable-battery-safety
DeleteI believe it is suitable for flying. It is the densest pack, so you get the most range. Do not use Lithium Polymer (LiPo or RC battery) for flying unless it is LiFePo -- that is very dangerous. Have a ballistic parachute. Also in the very remote occasion that one cell may catch fire, can you jettison the pack from air? Safety rules:
Delete1- never charge above 4.15 volts, and at 4.15 V, do not charge it higher than 50 mA. The lesser current and more time, the more charge you will get. Between 4.2 and 4.15 is about 3% capacity that you will not use. The additional safety is worth the 3% less charge, and also the battery will last a lot longer. 2) use wire fuse for each cell (probably 6A, in case of short). 3) use protection board and balance board (a must, very cheap). 4) use a supply DC to (4.15 x number of cells in series CCVV) charger of good quality (a must - do not go above this voltage). 5) use a reliable AC to DC power supply. 6) let air flow between cells separated at least 5mmm.
here: https://na.industrial.panasonic.com/sites/default/pidsa/files/ncr18650b.pdf
ReplyDeleteis said that NORMAL CHARGING is 1620mAh = 1,6A !! >>NOT 6,7A<<
Thank you for your comment. When working with li-ion 18650 batteries it is very important to understand basics. In this case understanding difference between "Charging" and "Discharging". You are free to post your questions and concerns when it comes to ncr18650b or any other 18650 battery. I will be happy to help.
DeleteHi Sal, what kind of wire fuse should be used on this cell for a 2C max e-drive?
DeleteDo you go with 13S or 20S? Which is preferred?
Where can I find submersible motors and casing and propeller for boats. Power needed is about 10 kW. Thanks
Sacred B How exactly you are going to charge your battery pack? There is definitely a newer and a little better battery than NCR18650B. It's NCR18650GA (also from Panasonic / Sanyo)and a little less than 3C (or to be exact 10 Amp Max. Continuous load)
DeleteI use it in my mod (vapeing) and will it vent if I take 10A from it? It is not cotinuous discharge, 2-3 seconds time perioda/puffs. Anybody?
ReplyDeleteI use it in my mod (vapeing) and will it vent if I take 10A from it? It is not cotinuous discharge, 2-3 seconds time perioda/puffs. Anybody?
ReplyDeleteHrvoje, what is the model name of your e-cig mod? Or how many 18650 batteries it takes?
Deletehttps://na.industrial.panasonic.com/sites/default/pidsa/files/ncr18650b.pdf .in this pdf the discharge the battery to 2.5 volt .while 3 volt is the normal voltage that the cutoff kicks in .we bought 40 cells in packages off 2S and all of them have a max discharge of 2603 amps .while you give a 3200 amps minimum discharge .discharge is done with 2 amps current
ReplyDeleteHi, I want to put two of these batteries to a 100w regulated mod (e cigarette). I want to use it at 45 watts only. So the current needed it will be somewhere between 11 amps when the battery are fresh (>4 volts) and 15 amps when the battery drain to 3 volts. Will two of these handle that with safety? Does it matter if the two batteries are placed parallel or in series?
ReplyDeleteHI
ReplyDeleteI've built a motorcycle with a 15KW Golden Motor
Done the Pack using 400 Panasonic 10// 40S so ~ 160 Volts
I've seen 360 Amps instant written on the jauge ........
This make 36 Amps a cell !!! Those are amazing !!!!!
I am now going for 15// 44S still ~ 160 V but 660 cells & less stress for them
��
Hi there,
DeleteDid u faced battery heatup issue while discharging / load condition.
HI
ReplyDeleteHi
ReplyDeleteHi
ReplyDelete[video] Dead Simple Trick Brings Any Battery Back To Life
There’s a new way to bring nearly any type of old battery back to life ...so it’s just like new again.
This method works with nearly every type of battery out there ...and it’s simple and quick.
>> Click here to learn this secret battery reconditioning method <<
In case you’re wondering, you’ll be able to bring car, phone, and laptop batteries back to life with this.
It even works with solar/off-grid, marine, golf cart, and forklift batteries. Plus, many more!
>> Click here to learn how to bring your dead batteries back to life again <<
With this recondition battery secret, you won’t have to buy new expensive batteries anymore. You can just recondition your old, used batteries and save a lot of money!
And this new video presentation shows you how:
Best regards,
Kevin Day
does the battery has a build in reverse circuit protection?
ReplyDeleteBatteries and Chargers aim to provide reliable batteries and chargers that reduce your power cost and improve energy efficiency. We also offer reliable smart devices, flashlights, mobile phone holders, power banks, and mobile phone cases.
ReplyDeletehttps://www.batteriesandchargers.com/collections/smart-devices
Is there a danger to overheat the Panasonic NCR18650B when soldering them in parallel?
ReplyDelete